Improvement in filters



Filter.

P. HUERNE.

Patent'd July 16, 1872.

Inventor PATENT emes.;

UNITED STATES A |MPRovEMENT 1N FILTERS.

Specification forming part of Letters Patent No. 129,136, dated July 16, 1872.

SPE CIFIGATION.

To all whom it may concern.-

Beit known that I, PROSPER HUERNE, of the city and county of San Francisco, State of California, have invented an Improved Filter; and I do hereby declare the following description and accompanying drawing are sufficient to enable any person skilled in the art or science to which it most nearly appertains to make and use my said invention or improvements without further invention or experiment.

My invention relates to improvements in that class of iilters which are used for cleaning and purifying water for household and other purposes 5 and it refers more particularly to such as are attached to a hydrant or faucet where a pressure of water is obtained.

In order to more fully illustrate and explain my invention, reference is had to the accompanying drawing forming a part of this speciiication, in which- Figure 1 is a vertical section of the machine. Fig. 2 is a side elevation. Fig. 3 is atop view.

A represents a cylinder, through the center of which a tube, B, extends longitudinally. This tube or pipe leads out through the upper end of the cylinder at one side, as shown, and is bent so as to join with the cock or faucet G directly above the center. A tube or pipe, D, joins with the cock G on the side opposite the tube B, and is bent so as to enter the chamber on the opposite side of the cylinder. This tube extends a short distance into the cylinder. A short vertical pipe, E, which is provided with a coupling, f, serves to connect the filter to a hydrant or faucet. The cock Gis constructed so as to admit the water from the hydrant into either of the tubes B or E, as desired, being made similar to an ordinary two-way cock. The tube B is provided with numerous perforations or holes at and upon each side of its middle point inside of the cylinder. G is a porous stone, such as is suitable for ltering purposes. This stone is formed into an oval shape, and is provided with a hole passing through its center longitudinally of the proper size to allow the tube B to pass through it. When this stone is secured upon the pipe B, inside of the cylinder, the perforatons in the pipe will extend each way from the center just far enough to equalize the distance om the end and middle surfaces of the stone to the perforations in the plpe. l

It will thus be seen that a chamber, L, will be left entirely around the filtering-stone inside of the cylinder, into which chamber the tube or pipe D extends. By turning the cock C, so as to admit water from the hydrant into the pipe D, the chamber will be lled, and a pressure obtained sufficient to force the water through the interstices of the stone, and into the pipeB through the perforationsinthepipe. The pipe B extends down through the bottom of the chamber, and is provided with a cock, h, by opening which the filtered water can be drawn off as desired. A pipe, I, which communicates with the chamber inside the cylinder, also passes through the bottom of the cylinder, and is provided with a cock, J. The interior of the cylinder is divided intov two compartments by a perforated partition, k, which extends across near its lower end so as to provide a sediment-chamber, P, at the bottom of the cylinder.

When it is desired to cleanse the pores of the stone of the accumulated matter. it will only be necessary to close the cock h ofthe pipe B and open the cock J of the pipe I 5 then turn the cock C so as-to shut off the water from the pipe D and turn it into B, thus transferring the pressure to the inside of the stone, by which the water will be forced to the outside, and in a few moments clear the pores. The sediment will be carried off through the pipe I.

By the above construction of filters water can be taken from either of the tubes B or I, one of which will give the ordinary hydrant water and the other clear and pure filtered water. By regulating the pressure in the chamber the amount of water to be passed through the tilter and its quality can be varied according to the use to which it is to be applied.

Two simple cocks can be substituted for the single two-Way cock C, if desired, so that one of the upper tubes may be connected with a common water-tank and the other with a filtered-water' reservoir, so that ltered water can be used for clearing the stone.

By this means I provide a simple and effecit is attached.

tive 1ter,which can be cleaned without removing it from the hydrant or faucet to which The peculiar form and appliber P, perforated pipe B, porous stone G, and pipes D I, all constructed and arranged to be operated in the manner and for the purpose above specified.

In witness whereof I hereunto set my hand and seal.

PROSPER .HUERNE Witnessews J. L. BOONE, W. F. BINGHAM. 

